Group of painful conditions affecting the tendons of the wrist and hand.
Caused by relative narrowing of the tendon's retinacular sheath: stenosing tenosynovitis.
May involve any of the 21 extrinsic (9 flexor and 12 extensor) tendons of the hand and wrist.
Trigger digits and de Quervain disease are the 2 most common forms of stenosing tenosynovitis.
Diagnosis is usually clinical.
If required, the single most useful and accurate investigation is a high-resolution ultrasound scan.
Treatment may involve nonsteroidal anti-inflammatory drugs (NSAIDs), splinting, corticosteroid/local anesthetic injections, or surgery.
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